track number instead of song title

[newfi]

I copied my folder of mp3 files to a music file on the droid. Most of the files are displayed on the droid as their filename but about 30 of them display the name as Track #. And since some mp3 files have the same track number even though they have different file names I will have multi files displayed with the same track number. I deleted all the files on the droid and on the pc removed the track number tag from all the files that had data in that field. Then I copied them back to the droid but they still show up on the droid as Track # instead of the file name.
Any suggestions on how to fix this?